View of a geologist, probably G.K. Gilbert, a member of the U.S.G.S. survey crew in probably Arizona. The man has a beard and wears a shirt, pants, and suspenders. He holds a tool in his hand. Native American (Mohave Apache) guides, in loincloths...

Men sit and pose beside rocks at the edge of the Colorado River at what is identified as "Grotto Spring", in the Grand Canyon (later Grand Canyon National Park), Arizona. Shows a wooden row boat and sand beside the river, and steep canyon walls in...